Renewable-seat valve.



No,- ,65;i ,423. I Patented July l0, I900. E. H; LUNKEN.

RENEWABLE SEAT VALVE.

(Application filed Mar. 3, 1900.)

(No Model.)

fill/altar.

4mm esses,

wasmnmon u u UNITED STATES PATENT OFFIcEi.

EDMUND H. LUNKEN, OF DENVER, COLORADO, ASSIGNOR TO THE LUNKEN- HEIMER COMPANY, OF CINCINNATI, OHIO.

REN EWABLE-SEAT VALVE.

SPECIFICATION forming part of Letters Patent No. 653,423, dated J uly 10, 1900.

Application filed March 3, 1900. Serial No. 71173. (No model.)

To all whom it may concern:-

Be it known that I, EDMUND H. LUNKEN, a citizen of the United States, residing at Denver, in the county of Arapahoe and State of Colorado, have invented certain new and useful Improvements in Renewable-Seat Valves, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to that class of valves among which may be enumerated globevalves, check -valves in the form of globevalves, angle-valves, and, in short, all that class of valves having an inlet-opening, a pipeopening, and an interposed valve-seat opening, with a valve-seat covered by a valve that moves to and from its seat always in planes parallel with the plane of the seat; and it has for its object the provision of a removable and renewable seat and holder therefor for this class of valves, both of which can be readily applied and removed without trouble or loss of time and without disconnecting the valve from its pipe-fittin gs, thereby greatly increas ing the efficiency of the valve and prolonging its life.

The novelty of my invention will be hereinafter more fully set forth, and specifically pointed out in the claims.

In the accompanying drawings, Figure 1 is an axial side elevation of so much of a globevalve as is necessary to illustrate my invention, the bonnet and neck of the valve being united by an external union or coupling. Fig. 2 is a corresponding viewin which the bonnet is screwed directly into the neck of the valvebody. Fig. 3 is a plan view of the neck with the bonnet removed and showing the washer in place. Fig. 4 is a perspective view of the ring-seat holder and washer, the latter being raised above the former.

The same letters of reference are used to indicate identical parts in all the figures.

In Figs. 1 and 2,w hich represent an ordinary globe-valve or so much thereof as is necessary to illustrate my invention, A' represents the body with opposite pipe-openings a b to form inlet and outlet openings for the valve. Within the body, between these openings at b, is the usual diaphragm 0, having through it an opening (1, containing the valve-seat D, with which the valve e (represented by dotted lines) engages and is moved to and from the valveseat to close and open the valve by the usual or any suitable stem f, passing through and engaging with a cap or bonnet B, screwed down to the neck 0 of the valve.

So far the construction described is that of any ordinary globe-valve, and I will now proceed to describe the application of my inven tion thereto.

1 Loosely fitted within the valve-opening in the diaphragm c is a removable ring-seat D with an exterior rabbet or cut-out portion on its under side to fit the opening in the diaphragm, and with an upper beveled portion 9 to form the valve-seat with which the correspondingly-beveled portion of the valve 6 engages. The upper exterior portion of the ring-seat is rabbeted with a beveled lower side to the rabbet inclined inward, as seen at h, Fig. 1.

In Fig. 1 the removable seat D is first placed in position. Then a ring '5, Fig. 4, carrying on opposite sidesa pair of arms j, is slipped into the neck of the valve, which the ring snugly fits, until the lower ends of the arms on opposite sides of the passage-way of the valve rest and bear upon the upper rabbeted portion h of the ring-seat D. Then a washer E, Fig. 4, with one or more lugs projecting from its periphery, (in this instance two of such lugs are shown set diametrically opposite,) is slipped into the neck of the valve upon the top of the ring 5, grooves l having been cut in the neck of the valve to receive the lugs 76 of the washer E. In this manner the washer E is held from turning when the bonnet B is applied, whether the same simply rests upon the neck of the body with an inwardly-projecting hub and is united there to by the external union F, fitting over a flange of the bonnet and screwed upon' the exterior-threaded neck of the body, as in Fig. l, or whether the bonnet has a threaded hub, as in Fig. 2, which is screwed directly into the interiorly-threaded neck of the body. In both cases, however, the washer E is held from turning, and consequently the ring-seat holder, composed of the ring 6 and the arms j, beneath it can have no rotary or twisting motion imparted to them by the application of the bonnet, whether it be applied as in Fig. 1 or as in Fig. 2. The screwing down of the bonnet to position forces down the arms j to hold the ring-seat D securely in place.

Having thus fully described myinvention, I claim- 1. In valve construction in which the valve moves to and from its seat in constantly-parallel planes, the combination of the body having inlet and outlet openings and an interposed seat-opening, a ring-seat fitted to said last-named opening, an arm upon each side of the valve-passage bearing upon the ringseat, a ring connecting said arms, a non-revoluble washer fitted in the neck of the valvebody and adapted when the bonnet is secured in place to press down the arms to hold the ring-seat in place, and the valve which engages the ring-seat, substantially as described.

2. In valve construction in which the valve moves to and from its seat in constantly-parallel planes, the combination of the body having inlet and outlet openings and an interposed seat-opening, a ring-seat fitted to said last-named opening, an arm upon each side of the valve-passage bearing upon the ringseat, a ring connecting the upper ends of said arms and fitted within the neck of the valvebody, a non-revoluble washer fitted in the neck of the valve-body and resting upon the aforesaid ring and adapted when the bonnet is secured in place to press down the arms and hold the ring-seat securely in place, and the valve which engages the ring-seat, sub stantially as described.

3. In valve constructionin which the valve moves to and from its seat in constantly-parallel planes, the combination of the body having inlet and outlet openings and an interposed seat-opening, a ring-seat fitted to said last-named opening, an arm upon each side of the valve-passage bearing upon the ringseat, a ring connecting said arms, a washer fitted in the neck of the valve-body and provided with one or more retaining-lugs fitted in grooves in the neck of the body and adapted when the bonnet is secured in place to press down the arms to hold the ring-scat securely in place, and the valve which engages with the ring-seat, substantially as described.

4. In valve construction in which the Valve moves to and from its seat in constantly-parallel planes, the combination of the bodyhaving inlet and outlet openings and an interposed seat-opening, a ring-seat fitted to said last-named opening, an arm upon each side of the valve-passage bearing upon the ringseat, a ring connecting the upper ends of said arms and fitted within the neck of the valvebody, a washerfitted in the neck of the valvebody and provided with one or more retaining-lugs fitted in grooves in the neck of the body and resting upon the aforesaid ring and adapted when the bonnet is secured in place to press down the arms and hold the ring-seat securely in place, and the valve which engages with the ring-seat, substantially as described.

EDMUND I'I. LUNKEN.

Witnesses:

. OWEN N. KINNEY,

EDWARD PEoK. 

